管理饮用水分配系统的水务人员面临许多挑战。它们在成本、可靠性和监管约束下平衡运行和维护任务。由于饮用水分配系统的相对年龄，他们的任务变得复杂。老化系统令人担忧，因为水的下落不明，破损发生率增加，以及因注入事件导致水质恶化的可能性。提出了一种解决饮用水分配系统易受入侵事件影响的统一方法。该方法利用了结构信息、水力模型和人口数据。 这些数据在地理信息系统（GIS）中进行管理。该框架系统性地确定了易受微生物入侵的管段，并根据对附近敏感群体的了解，对这些管段进行了优先排序。决策框架的结果可能支持公用事业资本改善计划、基础设施维护，并可作为抽样监管计划的基础。包括21个参考文献、表格和图表。

Water utility personnel who manage drinking water distribution systems face manychallenges. They balance operation and maintenance tasks under cost, reliability, andregulatory constraints. Their tasks are complicated by the relative age of the drinkingwater distributions systems. Aging systems are of concern due to unaccounted for water,increased incidence of breakage, and the potential for water quality degradation due tointrusion events. A unified approach is proposed that addresses the susceptibility ofdrinking water distribution systems to intrusion events. The approach employsinfrastructure information, a hydraulic model, and demographic data. These data aremanaged within a geographic information system (GIS). The framework systematicallyidentifies pipe segments susceptible to microbial intrusions and prioritizes these segmentsfor attention based on knowledge about nearby sensitive populations. The results of thedecision framework may support utility capital improvement plans, infrastructuremaintenance, and can be used as a basis for sampling regulatory schemes. Includes 21 references, tables, figures.